I'll be using a pair of Endura waterproof trousers on my cycling trip. I'm always in two minds about waterproof trousers, and their effectiveness. Although they are waterproof, they are rarely breathable, which means that your legs end up wet through sweat anyway. The main advantage though, is that used in conjunction with jacket, gloves, and overboots, you stay relatively warm and mostly dry - cold is the worst thng when you are soaking wet in the middle of nowhere.